.turntable
    width 640px
    height 640px
    background #e6f7ff
    display flex
    flex-wrap wrap
    align-items center
    justify-content center
    box-sizing border-box
    padding 20px

.item
    cursor pointer
    width 200px
    height 200px
    background #ffffff
    font-size 30px
    text-align center
    line-height 200px
    color #000

.btn
    background #1890ff
    color #fff

.active
    background #e6f7ff
    color #1890ff

.breadcrumb
    margin-bottom 12px !important